Data Structures & Algorithms
Intro To Stacks
StacksA stack is a way to organize data where you can add or remove items only from the top. Think of it like a stack of plates in a cafeteria. You always put a new plate on the top, and when you need one, you take it from the top.
The Last In, First Out Principle (LIFO) means that the last item you put into the stack is the first one you take out. Imagine a stack of books:
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